To solve the equation \( \frac{x}{4} = 12 \) using inverse operations, we need to eliminate the fraction by multiplying both sides by 4.
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The equation is: \[ \frac{x}{4} = 12 \]
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Multiply both sides by 4: \[ x = 12 \times 4 \]
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Calculate \( 12 \times 4 \): \[ x = 48 \]
So, the correct response is:
Inverse operation is multiplication; x = 48.